Boeing has admitted it had to correct flaws in its 737 MAX flight simulator software used to train pilots, following two fatal crashes involving the aircraft within six months.

The aircraft manufacturing company said the software could not reproduce certain flight conditions such as those at the time of the Ethiopian Airlines crash in March or the Lion Air crash in October last year.

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https://www.thestar.com.my/business/business-news/2019/05/18/boeing-says-it-has-corrected-simulator-software-of-737-max-jets/